Dr. Green says that these children may find _______hard to think for themselves when they are older.
--- Your coffee smells good! --- It’s from Brazil. Would you like ____?
The 16-year-old _____ often shares her _____ and sadness with her best friend.
--What’s in the bag? --_____________.
向别人介绍自己的兄弟时应说:.
—Where is Liu Xiang from? --He is from .